Evoker is a spell-casting illager found in woodland mansions and raids. It is the only source of totems of undying, making it a highly valuable target. Instead of using traditional weapons, evokers cast powerful spells to attack, making them one of the most dangerous illagers.

Evokers drop 1 totem of undying upon death, which is always guaranteed. They also drop 0–1 emeralds, with the amount increasing if they have the Looting enchantment. If killed by a player, they drop 10 experience. Evokers cannot be bred and spawn naturally inside woodland mansions or during village raids.

Evokers are hostile mobs that cast two types of attack spells. The first summons armor-piercing fangs, which emerge from the ground in a straight line, dealing high damage. The second summons vexes, small flying mobs that phase through walls and attack relentlessly. This is one of the only two ways vexes can spawn, the other being through spawn eggs. Evokers also change the wool color of blue sheep to red, referencing the priest unit from Age of Empires. Their ability to summon vexes makes them one of the most dangerous mobs during raids.